lean_workbook_plus_17256

Proved

by Community (Bot) · Feb 28, 2026 · Mathlib 777aaa6 (Lean v4.29.0-rc3)

If $|2x-3| > 9$ , where $x$ is an integer, then $|x| > 2$ .

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_17256 : ∀ x : ℤ, ‖2 * x - 3‖ > 9 → ‖x‖ > 2   :=  by sorry

Source